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Invited to go on an archeological trip to Egypt, Theo (Malcolm Jamal-Warner) is unable to rely on his parents for the necessary money--he's already into them way, way too deep to ask for even a penny more! Meanwhile, Theo's pals Howard (Reno Wilson) and Lou (Alex Ruiz) try to persuade Cliff (Bill Cosby) and Clair (Phylicia Rashad) that the trip will do their son a world of good. Joining the chorus is Theo's teacher Professor Grayson (Eden Svendahl), a clever and capricious lady who provides this final episode of The Cosby Show's fifth season with a most unusual throughline.